A study was conducted to investigate the effectiveness of hypnotism in reducing pain. Previous studies show that measurements of pain are normally distributed. Measurements are taken from randomly selected subjects and the results are given in the accompanying table. At the 0.05 significance level, test the daim that the sensory measurements are lower after hypnotism. (The values are before and after hypnosis; the measurements are in centimeters on a pain scale.) Does hypnotism appear to be effective in reducing pain? CD E A B 6.6 | 6.5 | 9.0 10.3 11.3 8.1 6.8 2.4 7.4 G Subject Before H 6.3 11.6 After 8.5 8.1 6.1 3.4 2.0 Difference -0.2 | 4.1 1.6 1.8 3.2 2 2.9 9.6

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A study was conducted to investigate the effectiveness of hypnotism in reducing
pain. Previous studies show that measurements of pain are normally distributed.
Measurements are taken from randomly selected subjects and the results are
given in the accompanying table. At the 0.05 significance level, test the claim that
the sensory measurements are lower after hypnotism. (The values are before and
after hypnosis; the measurements are in centimeters on a pain scale.) Does
hypnotism appear to be effective in reducing pain?
| C | D
9.0 10.3 | 11.3 | 8.1 | 6.3
А В
6.6 | 6.5
6.8 2.4
Difference -0.2 | 4.1
Subject
Before
E
F
G
11.6
After
7.4
8.5
8.1
6.1
3.4
2.0
1.6
1.8
3.2
2 2.9
9.6
Transcribed Image Text:A study was conducted to investigate the effectiveness of hypnotism in reducing pain. Previous studies show that measurements of pain are normally distributed. Measurements are taken from randomly selected subjects and the results are given in the accompanying table. At the 0.05 significance level, test the claim that the sensory measurements are lower after hypnotism. (The values are before and after hypnosis; the measurements are in centimeters on a pain scale.) Does hypnotism appear to be effective in reducing pain? | C | D 9.0 10.3 | 11.3 | 8.1 | 6.3 А В 6.6 | 6.5 6.8 2.4 Difference -0.2 | 4.1 Subject Before E F G 11.6 After 7.4 8.5 8.1 6.1 3.4 2.0 1.6 1.8 3.2 2 2.9 9.6
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